const { preBind, postBind } = require("../../lib/utils/relate");
const { LOG_TYPE } = require("../../common/constants");
const {
  generateWeixinCache,
  saveWeixinUserKey,
  getWeixinPlatform,
} = require("../../lib/utils/weixin");
const { initWeixin } = require("../../lib/third-party/index");
const { ERROR } = require("../../common/error");

/**
 * 绑定微信
 * @tutorial https://uniapp.dcloud.net.cn/uniCloud/uni-id-pages.html#bind-weixin
 * @param {Object} params
 * @param {String} params.code  微信登录返回的code
 * @returns
 */
module.exports = async function (params = {}) {
  const schema = {
    code: "string",
  };
  this.middleware.validate(params, schema);
  const uid = this.authInfo.uid;
  const { code } = params;
  const weixinPlatform = getWeixinPlatform.call(this);
  const appId = this.getUniversalClientInfo().appId;

  const weixinApi = initWeixin.call(this);
  const clientPlatform = this.clientPlatform;
  const apiName =
    clientPlatform === "mp-weixin" ? "code2Session" : "getOauthAccessToken";
  let getWeixinAccountResult;
  try {
    getWeixinAccountResult = await weixinApi[apiName](code);
  } catch (error) {
    await this.middleware.uniIdLog({
      success: false,
      type: LOG_TYPE.BIND_WEIXIN,
    });
    throw {
      errCode: ERROR.GET_THIRD_PARTY_ACCOUNT_FAILED,
    };
  }

  const {
    openid,
    unionid,
    // 保存下面四个字段
    sessionKey, // 微信小程序用户sessionKey
    accessToken, // App端微信用户accessToken
    refreshToken, // App端微信用户refreshToken
    expired: accessTokenExpired, // App端微信用户accessToken过期时间
  } = getWeixinAccountResult;

  const bindAccount = {
    wx_openid: {
      [weixinPlatform]: openid,
    },
    wx_unionid: unionid,
  };
  await preBind.call(this, {
    uid,
    bindAccount,
    logType: LOG_TYPE.BIND_WEIXIN,
  });
  await saveWeixinUserKey.call(this, {
    openid,
    sessionKey,
    accessToken,
    refreshToken,
    accessTokenExpired,
  });
  return postBind.call(this, {
    uid,
    bindAccount,
    extraData: {
      wx_openid: {
        [`${weixinPlatform}_${appId}`]: openid,
      },
      ...generateWeixinCache.call(this, {
        openid,
        sessionKey, // 微信小程序用户sessionKey
        accessToken, // App端微信用户accessToken
        refreshToken, // App端微信用户refreshToken
        accessTokenExpired, // App端微信用户accessToken过期时间
      }),
    },
    logType: LOG_TYPE.BIND_WEIXIN,
  });
};
